diff --git a/dns/libidn2/Makefile b/dns/libidn2/Makefile
index 3e57c035bb13..2d6c6e3b7952 100644
--- a/dns/libidn2/Makefile
+++ b/dns/libidn2/Makefile
@@ -1,31 +1,33 @@
 PORTNAME=	libidn2
 PORTVERSION=	2.3.4
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	dns
 MASTER_SITES=	GNU/libidn
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Implementation of IDNA2008 internationalized domain names
 WWW=		https://www.gnu.org/software/libidn/\#libidn2 \
 		https://gitlab.com/libidn/libidn2
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	help2man:misc/help2man
 LIB_DEPENDS=	libunistring.so:devel/libunistring
 
 USES=		charsetfix iconv libtool localbase makeinfo pathfix
+LDFLAGS+=	-Wl,--undefined-version
 
 CONFIGURE_ARGS=	--disable-nls \
 		--with-libunistring-prefix=${LOCALBASE} \
+		--enable-ld-version-script \
 		ac_cv_prog_RONN=${TRUE}
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=${PREFIX}/share
 INSTALL_TARGET=	install-strip
 TEST_TARGET=	check
 USE_LDCONFIG=	yes
 
 INFO=		libidn2
 
 .include <bsd.port.mk>